The Closed Deck X4 is our most feature-packed standalone ECU to date. Powered by the Atmega2560 and fully compatible with the official Speeduino firmware (no code modification required), it offers exceptional flexibility and capability for a wide range of engine setups and applications.

Included:

• Closed Deck X4 ECU (assembled as pictured)

• Harness-side connectors and pins

• Arduino Mega 2560 "Pro" pre-flashed with latest Speeduino firmware

The Spark Gap X4 is a feature-filled 4-channel standalone ECU powered by the Atmega2560 and fully compatible with official Speeduino firmware. It supports up to 8 cylinders for fuel and ignition and is ideal for compact, cost-effective installations.

Included:

• Assembled Spark Gap X4 ECU

• Harness-side connectors and pins

• Arduino Mega 2560 "Pro" pre-flashed with latest Speeduino firmware

The legendary Official Speeduino 0.4 (0.4.4d)

Supports up to 8 cylinders for fuel and ignition using 4 channels for fuel and 4 channels for ignition outputs, suitable for 2 (even fire only), 3, and 4-cylinder engines with full sequential fuel and ignition. 6 (even fire only) and 8-cylinder engines are supported with wasted spark and 2 squirts per cycle.

Included:

• Official Speeduino 0.4.4d

Optional Selection:

• No MAP sensor

• 4-Bar Sensor (SMD Sensor via installed adapter)

• 2.5-Bar MAP Sensor (Currently out of stock)

Items you may need:

Arduino 2560

DRV8825 Idle Stepper Controller

IDC40 Breakout

IDC40 Screw Terminal Breakout

Fully compatible with the official Speeduino Firmware, no code modification required! This feature-filled 2-channel standalone ECU powered by official Speeduino Firmware supports up to 4 cylinders for fuel and ignition.

Included:

• Pre-Ignition x2 Standalone ECU (Assembled minus main Connector)

• ECU headers, harness side connectors, and pins.

• Optional 4-Bar MAP sensor

Items you may need:

• Arduino 2560

• DRV8825 Idle Stepper Controller

The OpenLogicEFI Engine Simulator, powered by the Ardustim firmware, is a powerful tool for simulating engine operation and testing various sensor and control systems. This simulator can simulate three simultaneous digital trigger patterns—crank, cam, and cam2—through free and open-source software, making it a versatile and flexible tool for hardware testing and diagnostics.

Assembled Unit:
Fully assembled and ready to use, as shown in the product images.

Unassembled Kit:
Includes a PCB with all surface-mount (SMD) components pre-installed. All remaining through-hole components are included but must be installed by the end user.